import sys

sys.setrecursionlimit(10 ** 7)
rl = sys.stdin.readline


def solve():
    X = int(rl())
    print(10 - X // 200)


if __name__ == '__main__':
    solve() import sys sys sys.setrecursionlimit(10 ** 7) sys.setrecursionlimit sys setrecursionlimit 10 ** 7 10 7 rl = sys.stdin.readline rl sys.stdin.readline sys.stdin sys stdin readline def solve():
    X = int(rl())
    print(10 - X // 200) solve X = int(rl()) X int(rl()) int rl() rl print(10 - X // 200) print 10 - X // 200 10 X // 200 X 200 if __name__ == '__main__':
    solve() __name__ == '__main__' __name__ '__main__' solve() solve def solve():
    X = int(rl())
    print(10 - X // 200) def solve():
    X = int(rl())
    print(10 - X // 200) solve rl = sys.stdin.readline sys.stdin.readline rl
import sys

sys.setrecursionlimit(10 ** 7)
rl = sys.stdin.readline


def solve():
    X = int(rl())
    print(10 - X // 200)


if __name__ == '__main__':
    solve()
